Spell check whole content of an editable element when it gets focused.

Source/core/html/HTMLTextAreaElement.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2010 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 65 matching lines @@
 
     virtual bool supportsPlaceholder() const { return true; }
     virtual HTMLElement* placeholderElement() const;
     virtual void updatePlaceholderText();
     virtual bool isEmptyValue() const { return value().isEmpty(); }
 
     virtual bool isOptionalFormControl() const { return !isRequiredFormControl(); }
     virtual bool isRequiredFormControl() const { return isRequired(); }
 
     virtual void defaultEventHandler(Event*);
+    virtual void handleFocusEvent(Element* oldFocusedNode, FocusDirection) OVERRIDE;
 
     virtual void subtreeHasChanged();
 
     virtual bool isEnumeratable() const { return true; }
     virtual bool supportLabels() const OVERRIDE { return true; }
 
     virtual const AtomicString& formControlType() const;
 
     virtual FormControlState saveFormControlState() const OVERRIDE;
     virtual void restoreFormControlState(const FormControlState&) OVERRIDE;
@@ skipping 43 matching lines @@
 
 inline HTMLTextAreaElement* toHTMLTextAreaElement(Node* node)
 {
     ASSERT_WITH_SECURITY_IMPLICATION(!node || isHTMLTextAreaElement(node));
     return static_cast<HTMLTextAreaElement*>(node);
 }
 
 } //namespace
 
 #endif